/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.coders;



import java.util.Collections;

import java.util.List;



/**

 * A {@link Coder} that has no component {@link Coder Coders} or other configuration.

 *

 * <p>Unless the behavior is overridden, atomic coders are presumed to be deterministic.

 *

 * <p>All atomic coders of the same class are considered to be equal to each other. As a result, an

 * {@link AtomicCoder} should have no associated configuration (instance variables, etc).

 *

 * @param <T> the type of the values being transcoded

 */

public abstract class AtomicCoder<T> extends StructuredCoder<T> {

  /**

   * {@inheritDoc}.

   *

   * <p>Unless overridden, does not throw. An {@link AtomicCoder} is presumed to be deterministic

   *

   * @throws NonDeterministicException if overridden to indicate that this sublcass of {@link

   *     AtomicCoder} is not deterministic

   */

  @Override

  public void verifyDeterministic() throws NonDeterministicException {}



  /**

   * {@inheritDoc}.

   *

   * @return the empty list

   */

  @Override

  public List<? extends Coder<?>> getCoderArguments() {

    return Collections.emptyList();

  }



  /**

   * {@inheritDoc}.

   *

   * @return the empty {@link List}.

   */

  @Override

  public final List<? extends Coder<?>> getComponents() {

    return Collections.emptyList();

  }



  /**

   * {@inheritDoc}.

   *

   * @return true if the other object has the same class as this {@link AtomicCoder}.

   */

  @Override

  public final boolean equals(Object other) {

    return other != null && this.getClass().equals(other.getClass());

  }



  /**

   * {@inheritDoc}.

   *

   * @return the {@link #hashCode()} of the {@link Class} of this {@link AtomicCoder}.

   */

  @Override

  public final int hashCode() {

    return this.getClass().hashCode();

  }

}